Obtaining urinary ALA estimates.
D000588:Amines / Q000652:urine; D055598:Chemical Phenomena; D002621:Chemistry; D005189:False Positive Reactions; D006801:Humans; D007982:Levulinic Acids / Q000652:urine*; D011166:Porphyrins
D000588:Amines; D007982:Levulinic Acids; D011166:Porphyrins